The governments of Saudi Arabia, the United Arab Emirates and Norway are notifying the United Nations that four commercial ships were targeted and at least three of them were damaged in the territorial waters of the United Arab Emirates on May 12.

In a written statement, the governments jointly say the incident "posed a threat to the safety and security" of international shipping and maritime navigation. It says no one was injured, but the hulls of at least three of the four ships were damaged.

Details around the alleged acts of sabotage off the coast of the UAE's port of Fujairah remain unclear. The joint statement by Saudi Arabia, the UAE and Norway does not say who they suspect was responsible. It says the three countries, working with international partners, are investigating.

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3:30 p.m.

President Donald Trump is disputing reporting that there is "infighting" among his foreign policy team as his administration ramps up rhetoric and pressure against Iran.

Trump tweets, "There is no infighting whatsoever."

Trump's administration has been warning of unspecified threats from Iran in the wake of new U.S. sanctions over the Islamic Republic's nuclear program and other malign behavior in the Middle East.

Some have suggested Secretary of State Mike Pompeo and National Security Adviser John Bolton don't see eye-to-eye on the strategy.

He adds that aides present different opinions but he reserves the "decisive and final decision," calling it "a very simple process."

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1:15 p.m.

House Speaker Nancy Pelosi says the U.S. must avoid war with Iran, and she says the White House has "no business" moving toward a Middle East confrontation without approval from Congress.

Pelosi's remarks to House Democrats come amid growing concerns in Congress over President Donald Trump's approach to Iran and mounting tensions in the Persian Gulf region over the administration's claims of unspecified threats linked to Iran.

Top leaders in Congress are expected to receive a classified briefing from the administration Thursday.

Pelosi told her colleagues the U.S. has to "avoid any war with Iran," according to a person in the room, who was granted anonymity to discuss the private caucus meeting.

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